420853129 has 4 divisors (see below), whose sum is σ = 420989184. Its totient is φ = 420717076.

The previous prime is 420853127. The next prime is 420853141. The reversal of 420853129 is 921358024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420853129 - 2¹ = 420853127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420853094 and 420853103.

It is not an unprimeable number, because it can be changed into a prime (420853127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63277 + ... + 69610.

It is an arithmetic number, because the mean of its divisors is an integer number (105247296).

Almost surely, 2^420853129 is an apocalyptic number.

It is an amenable number.

420853129 is a deficient number, since it is larger than the sum of its proper divisors (136055).

420853129 is a wasteful number, since it uses less digits than its factorization.

420853129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136054.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 420853129 is about 20514.7051892051. The cubic root of 420853129 is about 749.3939572296.

The spelling of 420853129 in words is "four hundred twenty million, eight hundred fifty-three thousand, one hundred twenty-nine".